Add links to policies

Show links to terms of service and privacy policy on settings page

src/Footer.js

@@ -1,9 +1,17 @@
-import React from 'react';
+import React from "react";
+import { Link } from "react-router-dom";
 
-export default function Footer() {
+export default function Footer(props) {
 	return (
 		<footer>
-			&copy; Matthew Grove {new Date().getFullYear()}
+			<span>&copy; Matthew Grove {new Date().getFullYear()}</span>
+			{
+				props.showTerms &&
+				<>
+					<Link to="/tos">Terms of service</Link>
+					<Link to="/privacy">Privacy policy</Link>
+				</>
+			}
 		</footer>
 	)
 }